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Nature 431, 403 (23 September 2004) | doi:10.1038/431403a; Published online 22 September 2004
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Ecology: Ethics and amphibians
Robert M. May1
Abstract
A statistical study shows convincingly that a technique for marking frogs in ecological field experiments compromises the results. Present practices need a rethink — and not only for practical reasons.
It was 25 years ago, at an ecology seminar at Princeton University, that I first learned of the standard method for 'marking' individual newts or other amphibians (Fig. 1) by clipping their toes.
- Robert M. May is in the Department of Zoology, University of Oxford, Oxford OX1 3PS, UK.
e-mail: Email: robert.may@zoology.oxford.ac.uk
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